A furnace filter is a device that helps to trap dust, debris, and other particles from the air coming into and going out of your furnace. Furnace filters can help to improve the air quality in your home, reduce the amount of ash and soot created when furnaces burn coal or wood, and protect your appliances from damage.
When you are thinking about purchasing a furnace filter, there are a few factors you should consider. Here are some other things to keep in mind:
1. Size
The size of the furnace filter will typically be based on the size of the furnace itself. Larger filters can fit on furnaces that have a larger capacity, while smaller filters may be better for smaller furnaces. It is important to choose a filter that fits your specific needs so that it can effectively clean the air inside your home. It is a good option to buy 18x18x1 air filters online.
2. Type of Furnace
Different types of furnaces require different types of filters in order to function properly.
3. Frequency of Filter Changes
The frequency of filter changes will vary depending on the type of furnace and how often it is used. However, most homes should plan on changing their furnace filters every six months or so. If you have a particularly dusty or dirty environment, you may need to change your filter more often.
Finally, you should decide whether you want a self-cleaning or manual furnace filter. Self-cleaning filters need no maintenance, while manual filters need to be cleaned occasionally using vacuum cleaner attachments or a brush.